Glass Bead Game playable variants

"GlassBeadGamePlayableVariant" is Charles_Cameron?'s term for an attempt to realise the GlassBeadGame in the real world in a playable way. One might think of a playable variant as "a glass bead game" (or gbg) rather than "the Glass Bead Game" (or GBG, which depending on viewpoint is either a fictional construct from TheNovel or an unattainable ideal or both).